A study found that widespread, extreme temperature events are often accompanied by greater solar radiation and higher wind speeds that could be captured by solar panels and wind turbines. The research, which looked at extensive heat and cold waves across the six interconnected energy grid regions of the U.S. from 1980-2021, also found that every region experienced power outages during these events in the past decade.
The study showed increased solar energy potential in all six U.S. regions during heat extremes, and in all but one region during cold ones, the area covered by the Texas-run grid. The researchers noted that atmospheric ridges or atmospheric high-pressure systems that cause intense heat, like the heat wave that hit the Pacific Northwest in 2021, are often characterized by cloudless, blue skies.
Previous research has shown that climate change is changing the characteristics of temperature extremes. Adding to that evidence, this analysis showed that large heat waves are increasing in frequency, particularly across the Western U.S. and Texas grids, rising by 123% and 132% respectively. In the West, they are also increasing in intensity, duration and extent, meaning that they are hotter, last longer and affect a larger area.
Expanding solar and wind energy has the potential to improve the resilience of energy systems during extreme events to minimize service disruptions and associated adverse impacts, which are often felt the hardest among vulnerable, overburdened communities, said Singh. In addition to increasing climate resilience of the country's energy infrastructure, she also pointed out these renewable energy sources have multiple benefits.
"There is complexity here because we have to think about vulnerabilities in transmission and distribution infrastructure as well as the environmental impact of expanding solar and wind systems, but hopefully these benefits can give us additional reasons to accelerate our transition towards renewable energy," said Singh."There are also technological improvements that could help ensure that we can leverage renewable energy when it's needed. The capacity is there.
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